SanDisk 32GB MicroSDHC High Speed Class 4 Card with MicroSD to SD Adapter and SanDisk Mobile Mate reader Capacity: 32 GB Speed performance rating: Class 4 Type: SanDisk MicroSDHC card Built-in security enables users to download, store, and play secure content. SD Adapter included. SanDisk Mobilemate Micro Card reader included. Minimum data transfer rate of 4MB/ sec.